nicker⁴ /nikˈər/

1. A clay marble (also knicker)
2. The round seed of a Caesalpinia (or Guilandina if this is considered a separate genus), used for playing marbles (also nickˈar)

• slip on
• slip-on
• slip one's ways
• slip-ons
• slip-over
• slippage
• slippages
• slipped
• slipped disc
• slipper
• slipper animalcule
• slipper bath
• slipper baths
• slippered
• slipperier
• slipperiest
• slipperily
• slipperiness
• slipperinesses
• slippering
• slipper limpet
• slipper limpets
• slipper orchid
• slipper orchids
• slippers